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 ###Instrução: Qual é o distrito com os candidatos leven powell (f) 63.8% roger west (dr) 36.4%?
 ###Tabelas: CREATE TABLE universities (universities_id AUTO_INCREMENT PRIMARY KEY, Members VARCHAR, Country VARCHAR, Year Established INT, World Rank by THE-WUR , 2013 VARCHAR, World Rank by ARWU , 2013 VARCHAR, World Rank by QS , 2013 VARCHAR) CREATE TABLE  (_id AUTO_INCREMENT PRIMARY KEY, District VARCHAR, Incumbent VARCHAR, Party VARCHAR, First elected INT, Result VARCHAR, Candidates VARCHAR) CREATE TABLE series_5 (series_5_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, Episode INT, Performer 1 VARCHAR, Performer 2 VARCHAR, Performer 3 VARCHAR, Performer 4 VARCHAR) CREATE TABLE bafa_national_leagues (bafa_national_leagues_id AUTO_INCREMENT PRIMARY KEY, Team VARCHAR, Location VARCHAR, Years in senior / adult league VARCHAR, 2013 BAFA Adult division VARCHAR, 2013 BAFA Adult flag division VARCHAR, 2013 BAFA Junior division VARCHAR, Other teams VARCHAR) CREATE TABLE resident_heads_of_missions (resident_heads_of_missions_id AUTO_INCREMENT PRIMARY KEY, Mission VARCHAR, Location VARCHAR, Type VARCHAR, Head of Mission VARCHAR, Position VARCHAR, List VARCHAR)  
SELECT District FROM  WHERE Candidates = Leven Powell (F) 63.8% Roger West (DR) 36.4%